Examlex
Select the correct choice for the coefficients needed to balance the following equation.
___H2SO4 + ___Al(OH) 3 ___H2O + ___Al2(SO4) 3
David Haig
An evolutionary biologist known for his work on genetic conflict, parental investment theories, and the evolutionary origins of genomic imprinting.
Placenta
A temporary organ that connects the developing fetus to the uterine wall to allow nutrient uptake, thermo-regulation, waste elimination, and gas exchange via the mother's blood supply.
Eurasian Penduline Tit
A small passerine bird known for its unique breeding behavior and the elaborate nests built by males to attract females.
Costs And Benefits
The negative and positive outcomes respectively associated with a particular decision, action, or investment, evaluated in terms of overall impact.
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